To provide a net betting system by which individual users can easily use and participate in a game.

This net betting system 100 for performing a betting through a network includes: a betting system 200 to prepare race data on the game and outputs the prepared race data; a communication terminal 300 capable of performing a game application; and a virtual betting means 400 connected to the communication terminal 300 through a communication means to receive the betting data from the communication terminal 300 and outputs the received betting data to the betting system 200 during the communication terminal 300 performs the game application.

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